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Multi-node distributed radio frequency wireless charging method

A wireless charging and distributed technology, applied in wireless communication, circuit devices, electrical components, etc., can solve the problems of energy waste in multi-energy node transmission, achieve user fairness, eliminate system resource overhead, and save hardware costs Effect

Active Publication Date: 2020-03-10
HANGZHOU TERABITS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to solve the problems in the prior art, the present invention provides a multi-node distributed radio frequency wireless charging method to solve the problem of energy waste during multi-energy node transmission in the prior art

Method used

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  • Multi-node distributed radio frequency wireless charging method
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  • Multi-node distributed radio frequency wireless charging method

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Embodiment Construction

[0031]The present invention will be further described below in conjunction with accompanying drawing.

[0032] A multi-node distributed radio frequency wireless charging method, comprising the following steps: (A) at the beginning of each power transmission time slot, each wireless terminal WD sends a signal to the energy node EN in turn to let EN know the current state of each WD The state of the battery stage; (B) each energy node EN sends a training sequence to the frequency sub-channel allocated to itself, and each wireless terminal WD estimates the gains of all sub-channels according to the training sequence; (C) each wireless terminal WD according to Its own battery power selects a certain amount of sub-channels for feedback; (D) Each energy node EN allocates the transmission power on its own sub-channels according to the received votes.

[0033] In the step (A), the battery status of each wireless terminal WD is sent to the energy node EN, the battery status is divided ...

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Abstract

The invention relates to the field of wireless charging, in particular to a multi-node distributed radio frequency wireless charging method. A multi-node distributed radio frequency wireless charging method, including the following steps: (A) at the beginning of each power transmission time slot, each wireless terminal WD sends a signal to the energy node EN in turn; (B) each energy node EN sends a signal to the energy node EN; The training sequence is sent on the frequency sub-channel assigned to itself, and each wireless terminal WD estimates the gains of all sub-channels according to the training sequence; (C) each wireless terminal WD selects a certain amount of sub-channels for feedback according to its own battery power; (D) Each energy node EN allocates the transmission power on its own sub-channel according to the received votes. The present invention can effectively allocate the transmission power of the energy node in the frequency domain by jointly considering the battery power of the wireless device and the condition of the wireless channel, so as to realize the balance of transmission efficiency and user fairness.

Description

technical field [0001] The invention relates to the field of wireless charging, in particular to a multi-node distributed radio frequency wireless charging method. Background technique [0002] Modern wireless sensor technology is a bridge that connects information automation control technology with the real world. For example, wireless sensor technologies such as RFID, Internet of Things and environmental sensing have been widely used in logistics and warehouse management, industrial control, environmental and building monitoring, medical monitoring and smart home, and are the key to realizing industrial automation and urban management intelligence. key technologies. [0003] Usually wireless sensors are powered by batteries. However, due to size limitations, wireless sensors often carry batteries with very limited capacity, which cannot continue to support the smooth operation of the device. Therefore, frequent manual battery replacement or intermittent connection to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/08H02J50/00H02J50/50H02J50/80H04W72/54
CPCH04W72/0473H04W72/20H04W72/542
Inventor 毕宿志
Owner HANGZHOU TERABITS TECH CO LTD